CompTIA Linux+ XK0-004 Real Questions and Answers

dumps2022-01-03T02:51:53+08:00

XK0-004 exam is a related test for CompTIA Linux+ certification, which validates the skills of IT professionals with hands-on experience. There are 90 questions in real CompTIA Linux+ certification, and you have 90 minutes to write all the questions. The required passing score of CompTIA certification XK0-004 exam is 720. All the online CompTIA Linux XK0-004 real questions and answers are valid in your preparation. Free CompTIA Certification XK0-004 real questions and answers are available below.

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1. A Linux administrator needs to schedule a cron job to run at 1:15 p.m. every Friday to report the amount of free disk space on the system and to send the output to a file named “freespace” .

Which of the following would meet this requirement?

13 15 * * 5 df > /freespace

15 13 * * 5 df > /freespace

15 1 * * 6 df > /freespace

15 13 6 * * df > /freespace

2. A Linux systems administrator needs to copy the contents of a directory named “working” on the local working system to a folder /var/www/html on a server named “corporate-web”.

Which of the following commands will allow the administrator to copy all the contents to the web server?

scp Cr working/* webuser@corporate-web:/var/www/html

tar working/* webuser@corporate-web:/var/www/html

cp Cr working/* webuser@corporate-web:/var/www/html

mv working webuser@corporate-web:/var/www/html

3. An administrator is reviewing suspicious activity on a server and needs to determine which users logged into the system within the past 24 hours .

Which of the following commands should the administrator run to determine this?

last

who

usermod

4. A Linux administrator needs to back up the folder /usr/domain, and the output must be a gzip compressed tar .

Which of the following commands should be used?

tar Ccv domain.tar.gz /usr/domain

tar Ccvf /usr/domain domain.tar.gz

tar Cczvf domain.tar.gz /usr/domain

tar Ccxzv /usr/domain domain.tar.gz

5. A systems administrator needs to install a new piece of hardware that requires a new driver. The driver should be manually installed .

Which of the following describes the order of commands required to obtain module information, install the module, and check the log for any errors during module installation?

lsmod, modprobe, modinfo

modinfo, insmod, modprobe

modinfo, insmod, dmesg

lsmod, insmod, dmesg

6. Which of the following is the template for the grub.cfg file?

/etc/default/grub

/etc/grub2.cfg

/etc/sysct1.conf

/boot/efi

7. During the final step of staging new Linux hardware, GRUB2 is installed to the system drive .

Which of the following BEST describes the role of GRUB2 in a new Linux installation?

It provides a menu for creating administrator task shortcuts.

It provides a menu for running special shell scripts.

It provides a method to partition a hard drive.

It provides a method to pass parameters to the Linux kernel on startup.

8. A Linux administrator needs the “tech” account to have the option to run elevated commands as root.

Which of the following commands would BEST meet this goal?

$ su C tech Cc “/bin/bash”

# usermod CaG wheel tech

# sudo CI tech

# groupadd Cu tech Cg root

9. A Linux systems administrator needs to set permissions on an application with the following parameters:

The owner of the application should be able to read, write, and execute the application.

Members of the group should be able to read and execute the application.

Everyone else should not have access to the application.

Which of the following commands would BEST accomplish these tasks?

chmod 710 <application name>

chmod 730 <application name>

chmod 750 <application name>

chmod 760 <application name>

10. A systems administrator is receiving errors while trying to install a popular virtualization software. The software specifications state the processor needs to support virtualization with Intel instructions. Additional requirements state the processor must accelerate encryption/decryption and use hyperthreading.

Given the following output about the processor:

fpu ume depse tsu msr pae mce cx8 apic sep mtrr pae mca cmov pat pse36 cflusm mmx

fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology

nonstop_tsc pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt aes xsave

avx rdrand hypervisor lahf_lm fsgsbase

Which of the following is the MOST likely reason for the errors?

The processor supports AMD instructions rather than Intel.

The processor cannot accelerate decryption.

The processor does not support hyperthreading.

The processor is running inside a virtual machine.

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11. Which of the following are Linux desktop managers? (Choose two.)

KDE

GNOME

GUI

VNC

X11

SPICE

12. Which of the following server roles would assign a host IP address?

DHCP

NTP

DNS

SSH

13. A systems administrator wants to install a new application that requires the newmod kernel module .

Which of the following commands should the systems administrator use?

lsof newmod

modinfo newmod

lsmod newmod

modprobe newmod

14. A Linux administrator needs every new file created on a directory to maintain the group permissions of the same directory .

Which of the following commands would satisfy this requirement?

chmod o+s <directory>

chmod u+s <directory>

chmod +s <directory>

chmod g+s <directory>

15. A systems administrator notices a large number of autoloaded device modules are no longer needed and decides to do a cleanup of them .

Which of the following commands will accomplish this task?

rmmod -c

depmod -r

insmod -c

modprobe -r

16. An administrator needs to look at a log for an application on a systemd-based system. There is no log for this application in /var/log .

Which of the following is another way to view the application log on this system?

tail -f /var/log/secure

journalctl Cu application

systemctl application.service

watch /var/lib/application/

17. A user receives an access_denied error when trying to modify a file, even though the file permissions are set to 777 .

Which of the following commands should be used to view additional file permissions?

getsebool

getenforce

ls -z

ps -z

18. A junior Linux administrator needs to access production servers using a secure SSH protocol .

Which of the following files should contain the public key to gain remote access to the server?

~/ssh/authorized-keys

/etc/authorized_keys

/etc/sshd/ssh.conf

~/.ssh/authorized_keys

19. An administrator is installing a new kernel but is getting an error indicating the filesystem is out of space. A disk usage check shows / has plenty of space.

Which of the following BEST represents where the administrator should check next?

/var

/proc

/boot

/etc

20. A junior systems administrator needs to schedule a backup script named /scripts/backup.sh and make the correct changes to the crontab.

Which of the following crontab entries would run the script every Monday at 2:05 a.m.?

1 * * 5 2 /scripts/backup.sh

2 5 * * 1 /scripts/backup.sh

5 2 * * 1 /scripts/backup.sh

1 * * 2 5 /scripts/backup.sh

5 2 * * 0 /scripts/backup.sh

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21. DRAG DROP

The lead Linux has added a disk, /dev/sdd, to a VM that is running out of disk space.

Place the following steps in the correct order from first (1) to last (4) to add the disk to the existing LVM.

22. A systems administrator needs to allow the Linux server to receive HTTP connections from Internet hosts. By default, the port for HTTP connections is blocked .

Which of the following rules should be added in the firewall to allow this type of connection?

firewall-cmd -- zone=public -- add-port=443/tcp --permanent

firewall-cmd -- zone=internal --add-port=80/tcp --permanent

firewall-cmd -- zone=public -- add-port=80/tcp -- permanent

firewall-cmd -- zone=internal --add-port=443/tcp --permanent

23. A Linux administrator wants to configure log messages of critical or higher severity levels from the cron utility to be logged to the console .

Which of the following will accomplish this objective?

Edit the /etc/logrotate.d/cron file to include the line cron.emerg.* /dev/console

Edit the /etc/rsyslog.conf file to include the line cron.emerg.* /dev/console

Edit the /etc/logrotate.conf file to include the line cron.emerg.* /dev/console

Edit the /etc/rsyslog.d/conf file to include the line cron.emerg.* /dev/console

24. Two specific users need access to a directory owned by root where backups are located .

Which of the following commands would BEST ensure the specified users can access the backup files?

umask

chcon

chmod

setfacl

25. An administrator notices that a long-running script, /home/user/script.sh, is taking up a large number of system resources. The administrator does not know the script’s function .

Which of the following commands should the administrator use to minimize the script’s impact on system resources?

renice

kill

nohup

26. Which of the following is used in unattended server installation via PXE?

Kickstart

YAML

Cloud-init

Container image

27. A Linux systems administrator is troubleshooting an issue with the /home directory running out of space. The administrator needs to determine which /home directories are using the most space .

Which of the following commands should be used?

lvs

fsck

28. A systems administrator wants to know the current status of a series of dd jobs that were started in the background three hours ago.

Which of the following commands will achieve this task?

sudo killall CHUP dd

sudo killall dd

sudo killall CTERM dd

sudo killall -USR1 dd

29. Ann, a Linux administrator, wants to edit a configuration management file. When she opens the file to edit, her text editor reports that the file has been opened in read-only mode. She then tries to edit the file as root by elevating via sudo and is still unable to save any changes. The error message in her text editor says that the read-only option is set on the file.

Ann checks the permissions on the file and sees the following:

-rw-rw-r-- 1 root wheel 30 Jun 13 15:38 infrastructure.yml

Which of the following commands is the BEST option to allow her to successfully modify the file?

chmod 600 infrastructure.yml

chown root: infrastructure.yml

chattr -i infrastructure.yml

chmod o+w infrastructure.yml

30. A user requested a USB serial device to be added to a desktop computer. The device has built-in kernel driver support. The administrator tested the device installation and access, but the user cannot access the serial port.

Each time the user attempts to access the device, an error log is created that shows the user does not have permission to use the serial port .

Which of the following will add a user to the group that has serial port capabilities?

usermod Ca CG serialport $USER

usermod Ca CG modem $USER

usermod Ca CG dialout $USER

usermod Ca CG root $USER

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31. A site reliability engineer updated the latest configuration management scripts and committed them to a workstream called either test or patch. A Linux administrator wants to ensure these latest workstreams are able to be retrieved to the server .

Which of the following is the BEST Git attribute to use?

branch

fetch

log

pull

32. A Linux storage administrator wants to create a logical volume group .

Which of the following commands is required to start the process?

pvcreate

vgcreate

lvcreate

mkfs.xfs

33. A systems administrator downloads an application’s source files, compiles the application, and installs it per the application’s installation instructions.

When trying to run the application, the system states:

$ occmd

bash: occmd: command not found…

Running the locate command shows it does exist in the following location:

/opt/occmd/bin/occmd

Which of the following should the administrator do to allow the command to run properly? (Choose two.)

sudo ln Cs /opt/occmd/bin/occmd /usr/local/bin/occmd

echo “export PATH=$PATH:/opt/occmd/bin” >> ~/.bashrc

mv /opt/occmd ~/ && ln Cs ~/occmd/bin/occmd ./occmd

echo “#!/bin/bash
${which occmd}” > /usr/bin/occmd.sh

sudo mv /opt/occmd/bin/occmd /etc/bin/

cd /opt/occmd/bin && chmod +x ./occmd && restorecon Crv *

34. Which of the following Linux server roles should be installed to monitor and log local web traffic?

Proxy server

AAA server

SSH server

HTTP server

Name server

35. Joe, a member of the accounting group on a Linux system, is unable to write a file called “taxes” in the accounting shared directory.

The ownership and permissions on the directory and file are as follows:

accounting drwxrw-r-- user = ann, group = accounting taxes -rw-r--r--, user = ann, group = accounting

Which of the following commands would allow Joe to write to the file? (Choose two.)

chmod g+x accounting

chmod 777 taxes

chgrp taxes accounting

chgrp accounting taxes

chmod 774 accounting

chmod u+x accounting

36. A company wants to provide internal identity verification services for networked devices .

Which of the following servers should be installed?

SSH

VPN

DHCP

DNS

37. A systems administrator wants to mount an ISO to access its content.

Using /mnt as a mount point, which of the following is the correct syntax?

mount -o iso9660 /dev/sr0 /mnt

mount -o loop -t iso /mnt

mount -o loop /tmp/image.iso /mnt

mount -o loop /dev/kvm /mnt

38. A Linux user needs to create a file named newfile in the home directory that mirrors the contents of the /etc/resolv.conf file.

Which of the following commands would accomplish this task?

cat /etc/resolv.conf > /home/user/newfile

echo /etc/resolv.conf > /home/user/newfile

grep /etc/resolv.conf < /home/user/newfile

printf /etc/resolv.conf > /home/user/newfile

39. A systems administrator configured a new kernel module, but it stopped working after reboot .

Which of the following will allow the systems administrator to check for module problems during server startup?

lsmod

modprobe

modinfo

dmesg

40. A new IO card has been added to the security server to log the opening and closing of the main entrance. A switch is attached, so the interface card returns a 1 when the door is opened and a 0 when the door is closed.

Which of the following describes the Linux device to which this switch is attached?

/dev/tty0

/dev/port

/dev/gpio

/dev/sg0

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41. A systems administrator needs to run the yum update command two hours after employees log off and leave for the day on Friday.

Which of the following is the BEST command to complete the task, if the task only needs to be run once?

screen

cron

nohup

42. A member of the production group issues the following command:

echo "Monday through Friday" > /production_docs/days

The command fails to execute, so the user obtains the following output:

drwxr--r-- root production 0 Jun 16 2018 production

-rw-r--r-- production production 4096 Jun 14 2018 days

Which of the following commands should the user execute to BEST fix the issue?

chmod g+w production to change the permissions of the days file

chgrp root production_docs/days to change the group ownership of the production_docs/days file

chmod g+S production to set the GUID on the production_docs directory

chown production to change the ownership of the production_docs directory

43. A Linux administrator receives a call from the network operations team that one of the database applications is down on a Linux server. The Linux server is configured with RAID 1 for redundancy, and the array /dev/md0 consists of two devices called /dev/sda1 and /dev/sdb1. After looking at the status of the RAID 1 array in the /proc/mdstat file, the administrator discovers the RAID 1 array is degraded and the disk /dev/sdb1 on which the database application was installed appears to have failed.

Which of the following steps should the administrator take to remove the device /dev/sdb1 from the RAID array md0? (Choose two.)

mdadm /dev/md0 --remove /dev/sdb1

mdadm /dev/sdb1 --fail /dev/md0

mdadm /dev/md0 --fail /dev/sdb1

mdadm /dev/sdb1 --remove /dev/md0

racadm --remove /dev/sdb1

racadm --fail /dev/sdb1

44. A system ran out of storage space on a particular mount and will not allow anything to be written to disk. The df command shows there are 6GB free on the mount, and there is no inode exhaustion. This issue has happened before due to a known large log file that was not being rotated. The administrator remembers the file name but cannot remember the location of the log file or which process is writing to it .

Which of the following would be the BEST solution to correct this issue while maintaining availability?

Use the lsof command to find where the large log file is located and truncate it

Use the locate command to find where the large log file is located and delete it

Use the du command to find where the large log file is located and delete it

Use the ps command to find which process is writing to the log file, and then kill and restart the process

45. A user wants to use terminal services from a Windows workstation to manage a Linux server .

Which of the following should be installed on the Linux server to enable this functionality?

VNC

rdesktop

SPICE

XRDP

46. A Linux administrator is restoring the SELinux contexts on an entire system .

Which of the following commands is the BEST option to complete this task?

setenforce 0 && reboot

setfacl CbR / && reboot

touch /.autorelabel && reboot

restorecon / && reboot

47. A Linux engineer is troubleshooting a newly added SCSI device for a Linux server that needed more disk space without rebooting. The engineer discovers that the new device is not visible by the Linux kernel in fdisk -l output .

Which of the following commands should be used to rescan the entire SCSI bus?

echo "- - -" > /sys/class/scsi_host/host0/scan

echo ''> /sys/class/scsi_host/host0/scan

echo "- - -" > /sys/scsi/scsi_host/host0/scan

echo "scan" > /sys/class/scsi_host/host0/scan

48. A systems administrator received a request to change the hostname to a new name .

Which of the following file configurations should be changed to fix the hostname in the server?

/etc/sysconfig/network

/etc/hosts

/etc/resolv.conf

/etc/sysconfig/nsswitch.conf

49. An analyst is trying to determine which public IP addresses are managed by Company A, but the script is not working correctly.

Which of the following explains what is wrong with the script?

$(cat ip-list.txt) should be changed to `cat ip-list.txt` in the for statement.

The for should be changed to while in the loop.

The > should be changed to 2> in the do statement.

The -ne flag should be changed to -eq in the if statement.

50. A new HTTPS web service is being deployed on a server .

Which of the following commands should the Linux administrator use to ensure traffic is able to flow through the system firewall to the new service?

iptables CI OUTPUT Cp tcp --sport 443 Cj ACCEPT

iptables CA INPUT Cp tcp --dport 443 Cj ACCEPT

iptables CI INPUT --dport 443 Cj ACCEPT

iptables CA OUTPUT Cp tcp --dport 443 Cj ACCEPT

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51. A system administrator has deployed a Linux server based on an Anaconda process with all packages and custom configurations necessary to install a web server role.

Which of the following could be used to install more Linux servers with the same characteristics?

/etc/sysconfig/anaconda/cfg

/root/anaconda.auto

/root/anaconda-ks.cfg

/etc/sysconfig/installation.cfg

52. A systems administrator needs to connect to a remote Linux machine to run system updates from within a graphical interface .

Which of the following should the administrator use?

MATE

Wayland

VNC

Unity

53. A Linux administrator needs to add some files in a directory to the Git repository but must exclude some local .tmp files that are occasionally created by the scripts.

Which of the following is the BEST way to accomplish this task?

git rm .tmp

git add -x .tmp *

echo .tmp >> .gitignore

rm -rf .tmp

54. A technician wants to secure a sensitive workstation by ensuring network traffic is kept within the local subnet.

To accomplish this task, the technician executes the following command:

echo 0 > /proc/sys/net/ipv4/ip_default_ttl

Which of the following commands can the technician use to confirm the expected results? (Choose two.)

tcpdump

traceroute

route

iperf

arp

55. A Linux administrator implemented a new HTTP server using the default configuration. None of the users on the network can access the server.

If there is no problem on the network or with the users’ workstations, which of the following steps will BEST analyze and resolve the issue?

Run netstat to ensure the port is correctly bound, and configure the firewall to allow access on ports 80 and 443

Run route to ensure the port is correctly bound, and configure the firewall to allow access on ports 80 and 443

Run netcat to ensure the port is correctly bound, and configure a static route to the web to allow access on ports 80 and 443

Run route to ensure the port is correctly bound, and configure SELinux to allow access on ports 80 and 443

56. A systems administrator wants to download a package from a remote server .

Which of the following are the BEST commands to use for this task? (Choose two.)

curl

wget

make

tar

zip

57. A Linux administrator wants to fetch a Git repository from a remote Git server.

Which of the following is the BEST command to perform this task?

git checkout

git clone

git merge

git config

58. A systems administrator is configuring options on a newly installed Linux VM that will be deployed to the Pacific time zone .

Which of the following sets of commands should the administrator execute to accurately configure the correct time settings?

cd /etcln Cs /usr/share/zoneinfo/US/Pacific localtime

cd /usr/localln Cs /usr/share/zoneinfo/US/Pacific zoneinfo

cd /etc/localln Cs /usr/share/zoneinfo/US/Pacific localtime

cd /usr/share/localln Cs /usr/share/zoneinfo/US/Pacific localectl

59. An administrator needs to change the DNS domain search order of a single Linux host to localize it better.

Which of the following files should the administrator edit?

/etc/resolv.conf

/etc/hosts

/etc/nsswitch.conf

/etc/dhcpd.conf

60. An administrator notices the HISTSIZE variable is 50, using the commands below:

HISTSIZE=50

export HISTSIZE

The administrator rechecks the HISTSIZE value using echo HISTSIZE but gets no value .

Which of the following commands should the administrator use to retrieve its value?

printenv | grep $HISTSIZE

echo HISTSIZE

printf HISTSIZE

grep $HISTSIZE

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61. A Linux systems administrator is implementing Source Code Management for the web application server configuration files located in /etc/httpd/ .

Which of the following steps should the administrator perform FIRST?

Clone the remote repository using ‘git clone’

Create a new repository using ‘git init’

Retrieve the remote changes using ‘git commit’

Configure the directory for git using ‘git config’

62. A junior systems is configuring localization option environment variables.

The administrator is given a checklist of tasks with the following requirements:

View current settings of the LC_ALL environment variable only.

Modify the LANG environment variable to US English Unicode.

Given this scenario, which of the following should be performed to meet these requirements? (Choose two.)

echo $LC_ALL

locale

cat $LC_ALL

export LANG = en_U

UTF-8

export $LANG = en_U

UTF

stty

63. A user wants to alias dir so it always returns the contents of the ls -la command. However, the user has to reset the alias with every login.

Which of the following is the BEST action the user can take to ensure the command is always available?

echo "alias dir=ls -la" > /etc/profile

echo "alias dir=ls -la" >> /etc/skel

echo "alias dir=ls -la" >> ~/.profile

echo "alias dir=ls -la" > ~/.bashrc

64. Given the output below:

[root@appserver ~]# rm config.txt

rm: remove regular file 'config.txt'? yes

rm: cannot remove 'config.txt': Operation not permitted

Which of the following might be the cause?

The file config.txt does not have the user write bit set.

The file config.txt does not exist.

The file config.txt has the immutable attribute set.

The file config.txt has an ACL that does not permit deletion by others.

65. A security administrator wants to display a warning banner before a user logs in .

Which of the following files must be edited to make this happen?

/etc/services

/etc/issue

/etc/hosts

/etc/motd

66. Which of the following configuration files should be modified to disable Ctrl-Alt-Del in Linux?

/etc/inittab

~/.bash_profile

/etc/securetty

/etc/security/limits.conf

67. A Linux administrator wants to obtain a list of files and subdirectories in the /etc directory that contain the word “services”. Once the files and subdirectories are discovered, they should be listed alphabetically in the /var/tmp/foundservices file .

Which of the following shell scripts will accomplish this task?

#/bin/bashfind /etc Cname services | sort > /var/tmp/foundservices

#/bin/bashlocate /etc Csort Cname services > /var/tmp/foundservices

#/bin/bashfind Cname services Csort </var/tmp/foundservices

#/bin/bashfind /etc Cname services Csort > /var/tmp/foundservices

68. A company wants to ensure that all newly created files can be modified only by their owners and that all new directory content can be changed only by the creator of the directory .

Which of the following commands will help achieve this task?

umask 0022

umask 0012

chmod CR 0644 /

chmod CR 0755 /

69. Users in the sales department are unable to create new files in the shared directory /Sales. A junior Linux administrator determines the permissions on the /Sales directory are set to rwxr-----, and

sales is the group owner of the directory.

Which of the following is the BEST command for the junior administrator to issue to allow the users to create new files?

umask 002

chmod 770 /Sales

chmod g+s /Sales

chmod 777 /Sales

70. A junior administrator is installing kernel modules.

The administrator is given a checklist that outlines the following tasks to be completed:

- Display currently installed module version.

- Display which modules loaded at startup.

Which of the following commands would be used to accomplish these tasks? (Choose two.)

cat /etc/issue

insmod

lsmod

rmmod

depmod

dmesg

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71. Users in the payroll department are not configured to use DNS due to security concerns. The users ask the junior Linux administrator to configure their workstations to access the payroll server at 192.168.204.11 by the name “Payroll” .

Which of the following commands should the administrator issue to meet this request?

echo “nameserver 192.168.204.11 #Payroll” >> /etc/resolv.conf

echo “net.ipv4.ip_dynaddr=192.168.204.11 Payroll” >> /etc/sysctl.conf

echo “192.168.204.11 Payroll” >> /etc/hosts

echo ‘IPADDR=”192.168.204.11” #Payroll’ >> /etc/network/interface

72. A junior administrator of a physical server receives log messages indicating the out-of-memory killer has been active. All memory slots are in use on the motherboard, but additional disk space is available. Space has been allocated for a swap file.

Which of the following should the administrator use to reduce the output of memory messages?

free : swapoff / swapfile ; swapon -a

mkswap /swapfile; swapon Ca

fallocate Cl 2G /swapfile && swapon Ca

echo “1” > /proc/meninfo ; swapon / swapfile

73. The development team has automated their software build process so each time a change is submitted to the source code repository, a new software build is compiled. They are requesting that the Linux operations team look into automating the deployment of the software build into the test environment .

Which of the following is the benefit to the development team for implementing deployment automation?

To ensure the build commits are also deployed to the test environment

To enable notifications when builds are deployed to the test environment

To ensure software builds in test are not accidentally deployed to production

To streamline the deployment process for deploying builds into test environments

74. Which of the following is the purpose of the monitoring server role?

To aggregate web traffic to watch which websites employees are visiting

To collect status and performance information about the servers in an environment

To provide user authentication services to a network

To provide real-time analysis of potential threats to the organization

75. An administrator needs to mount the shared NFS file system testhost:/testvolume to mount point /mnt/testvol and make the mount persistent after reboot.

Which of the following BEST demonstrates the commands necessary to accomplish this task?

A)

Option A

Option B

Option C

Option D

76. A user, jsmith, needs access to database files located on a server .

Which of the following will add jsmith to the “dba” group and preserve existing group memberships?

usermod Ca CG dba jsmith

usermod Cg dba jsmith

useradd Cg dba jsmith

groupmod dba Cu jsmith

77. A storage administrator in a virtualized environment has been told by a user that there is no space left on the volume to which the user can write. However, a check reveals that there is 20GB of unused space .

Which of the following explains the discrepancy?

The drive is not formatted

The drive is thin provisioned

The drive is thick provision eager zeroed

The drive space is overallocated

78. A junior systems administrator created a new filesystem /dev/sda1 with mountpoint /data and added it to the /etc/fstab for auto-mounting.

When the systems administrator tries to mount the file system, the system refuses.

Given the output below:

Which of the following steps is necessary?

Change the filesystem from /dev/sda1 to /dev/sda2 and reboot.

Change the options to auto, dev, sync, rw, nosuid and run the mount -a command.

Change the mount point to data and reboot.

Change the dump column to 1 and run the mount -a command.

79. Which of the following servers provides encrypted tunnel SOCKS services?

SNMP

VPN

SSH

80. A server administrator notices that one of the servers cannot connect to its gateway, which has the IP 10.10.10.1.

Which of the following commands should the administrator execute to determine the default gateway of the server?

route -n

ip a default-gw

ifconfig

nslookup

CompTIA Linux+ XK0-004 Real Questions and Answers

CompTIA Linux+ XK0-004 Real Questions and Answers

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